Nutrient Pad Sets – Introduction

Nutrient pad sets (NPS) are sterile dehydrated nutrient culture media that are ready for immediate use
after addition of sterile water. They are made of biologically inert cellulose cardboard that serves as a substrate
for the nutrient solution. Since it does not bind the nutrients either chemically or physically,
the nutrient components are completely available for the growth of microorganisms.

The composition of the various nutrient solutions used for the various NPS comply with the formulations specified
in the relevant standards and regulations.

Nutrient pad sets have a number of advantages over conventional agar media: